The writer said on Monday that she had COVID-19 symptoms for two weeks, but was not tested for the virus.

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Rowling linked to a video by a doctor from Queens Hospital in the U.K. who demonstrates how to relive respiratory symptoms related to COVID-19 through a breathing technique.

Rowling said that her doctor husband Neil Murray recommended doing the technique and that it helped with her recovery.

"Thank you for your kind and lovely messages! I finally am completely recovered and wanted to share a technique that's recommended by doctors, costs nothing, has no nasty side effects but could help you/your loved ones a lot, as it did me. Stay safe everyone," Rowling said in a second tweet.